The knowledge that some people can have enough while you never can is the single most compelling piece of evidence for a drinker to suggest that alcoholism is, in fact, a disease, that it has powerful physiological roots, that the alcoholic’s body simply responds differently to liquor than a nonalcoholic’s. Once I started to drink, I simply did not know how or when to stop: the feeling of need kicked in, so pervasively that stopping didn’t feel like an option.